Declan Donnelly and wife Ali Astall have announced they are expecting their first child .

It's been reported that 40-year-old Ali fell pregnant shortly after Dec, 42, left the jungle in December following the latest series of I’m A Celebrity.

The couple kept their news quiet until talent manager Ali had safely passed the 12-week mark.

A source close to the pair, who wed in 2015 after knowing each other for a decade, said: “This has come at a difficult time for them both, given everything that Ant is now going through and the pressure that has put on Dec in the past week.

Ant and Ali met through work before marrying in 2015 (Image: Daily Mirror)

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But their priority now is their baby and an experience that they see as the best of their lives. Dec and Ali are both absolutely delighted to be expecting, especially as they have been trying for some time.

“They have both always wanted a family but worried that it might not happen for them. They have been keeping the pregnancy a closely guarded secret, but now that Ali is safely over 12 weeks, they are starting to let people know," they added to The Sun.

Dec’s best pal and TV partner Ant, who checked into rehab this week following his arrest on suspicion of drink-driving following a three-car smash, knows of the pregnancy.

Family-loving Dec, one of seven children born to Irish Catholic parents, has frequently spoken of his desire to have kids.

He and Ali, who began dating in August 2013, are understood to have started trying for a baby soon after they married.

Back then, Dec said having children was “the next stage of our lives”. He added: “I’m looking forward to that.”

The presenters with their partners Lisa and Ali before Ant's and Lisa's split last year